Bela's interests include network protocols, performance, group communication, trail running, biking and beerathlon.

Bela的兴趣包括网络协议，性能，群组通讯，越野跑，骑自行车和Beerathlon（注：一项有关 啤酒的游戏）。

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The group communication model which the authors get, the projections for lightweight transport protocols XTP and computer conferencing applications are described in this paper.

文章主要描述建立群组通信抽象模型的过程和结论以及参照新型运输协议XTP和计算机会议应用的模型映射和评价。

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Secure group communication is more complicated than peer to peer communication, and poses a number of challenges ranging from basic algorithms, systems and secure protocols to secure implementation.

相对于端到端的通信，安全群组通信更为复杂，从基本算法、系统及安全协议到安全实现都还存在需解决的问题。

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